HG/T 5623-2019
HG 2093-1991
HG/T 5713\uff5e5716-2020
HG/T 5803\uff5e5806-2021
HG/T 5620\uff5e5623-2019
HG/T 3678-2010
p-Sulfanilic acid
HG/T 5501\uff5e5504-2018
T/CHBAS 11-2021
HG/T 2746-2010
Sodium sulphanilate
MIL MIL-M-37788 Notice 1-Validation
METHYL SALICYLATE, USP (S/S BY A-A-54770)
HG/T 5694\uff5e5697-2020
HG/T 6250-2023
HG/T 5845\uff5e5848-2021
GB/T 33089-2016
Chemical reagent—N,N-dimethyl-p-phenylenediamine dihydrochloride
HG/T 3678-2000
p-Sulfanilic Acid
HG/T 5709\uff5e5712-2020
UNE-EN 15168:2007
Surface active agents - Determination of hydroxyl value. p-Toluensulfonyl isocyanate (TSI) method and potentiometric titration with tetrabutylammonium hydroxide
DIN EN 15168
Surface active agents - Determination of hydroxyl value - p-Toluensulfonyl isocyanate (TSI) method and potentiometric titration with tetrabutylammonium hydroxide
BS EN 15168:2006
Surface active agents. Determination of hydroxyl value. p-Toluensulfonyl isocyanate (TSI) method and potentiometric titration with tetrabutylammonium hydroxide
EN 15168:2006